1 /* 2 * Copyright (c) 2003, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 13 * accompanied this code). 14 * 15 * You should have received a copy of the GNU General Public License version 16 * 2 along with this work; if not, write to the Free Software Foundation, 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 * 19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 * or visit www.oracle.com if you need additional information or have any 21 * questions. 22 */ 23 24 /* @test 25 * @bug 4854056 26 * @summary Check release on closed channel 27 */ 28 29 import java.io.*; 30 import java.nio.channels.*; 31 32 public class Release { main(String[] args)33 public static void main(String[] args) throws Exception { 34 FileOutputStream fos = new FileOutputStream("testFile.tmp"); 35 fos.write(new byte[128]); 36 FileChannel ch = fos.getChannel(); 37 FileLock fl = ch.lock(); 38 ch.close(); 39 try { 40 fl.release(); 41 throw new RuntimeException("Expected exception not thrown"); 42 } catch (ClosedChannelException cce) { 43 // Correct result 44 } 45 } 46 } 47